package day03;

public class IfDemo {
    public static void main(String[] args) {double price=600.0;
        if(price>=500){
            price *= 0.8;
    }
        System.out.println("最终消费金额为:"+price);
        int score=555;
        if(score>=0 && score<=100){
            System.out.println("成绩合法");
        }
        System.out.println("继续执行...");
        int age=61;
        if(age>=60){
            System.out.println("老人");
        }

    }
}
